For Liebherr R900 C Litronic Hydraulic Excavator Operators, this reference brings together the listed repair manual material. Start with Index and follow the relevant document section for the task.
What’s Covered Inside
Service Repair Manual: 873 Pages
Operators Manual: 230 Pages
PIN/Type: 971, 981, 982
Manuals: Operators Manual, Repair Manual
Table of Content – Liebherr R900 C Litronic Hydraulic Excavator Type 971, 981, 982 Manual
Index
Group 1: General Information
1.10: Safety instructions
1.20: Tightening torques
1.22: Assembly instruction for pistons and piston nuts (hydraulic cylinders)
1.24: Assembly instruction for piston rod bearings with external threads (hydraulic cylinders)
1.25: Tightening torques of screws with LH-washer 340HV
1.26: Preloads and tightening torques (Din 13)
1.50: Fuel and Lubricants
Group 2: Tools
2.01: Special tools for maintenance and repair
2.02: Special tools for Liebherr Diesel engines
2.03: Special tools for the hydraulic system
2.06: Special tools for electrical connectors
2.07: Special tools for gears
2.08: Common tools
2.10: Measuring tool for spool travel
2.12: Mounting tools for hydraulic cylinders
2.14: Wrench for the slotted nut on the swing gear SAT
2.15: Compression device for brake piston of gear SAT
2.16: Compression device for brake piston of gear FAT
2.17: Mounting device for disk brake on travel gear
2.19: Eichwerten LMS System / Valeurs de calibrage
2.21: Pump test kit
2.22: Tools for installing the slipring seals
Group 3: Technical Data / Maintenance guidelines
3.51: Technical data
3.52: Technical data
3.64: Maintenance and Inspection Chart
3.65: Maintenance and Inspection Chart
3.71: Lubrication Chart R900C
Group 4: Diesel Engines
4.11: Technical Data Diesel Engines
Group 5: Coupling / Splitterbox
5.10: Coupling
Group 6: Hydraulic system
6.61: Adjustment Check List R 900 C Litronic (10.11.05)
6.68: LSC-System
6.69: Layout of Hydraulic System
6.70: Setting instructions for the hydraulic system
6.81: Hydraulic system – R 900 C
6.82: Hydraulic system
Group 7: Hydraulic Components
7.01: Installation and dismantling / start-up of hydraulic pumps
7.04: Variable Displacement Pump LPV
7.05: Variable displacement pump DPVO
7.22: Hydraulic fixed displacement motor FMF
7.28: Hydraulic variabe displacement motor FMV
7.30: Hydraulic cylinders
7.31: Extension and retraction speeds
7.34: Hydraulic Cylinders – R 900 C
7.36: Tightening values for pistons and piston nuts WN 4121
7.42: Control Oil and Control Unit
7.50: 1-way servo control
7.51: 2-way servo control
7.52: 2-way servo control
7.53: 2-way servo control
7.54: 4-way servo control
7.61: LSC-Control Valve Block
7.64: Inspecting the control valve blocks for leak oil
7.75: 1-way rotary connection
7.77: 5-way rotary connection
7.79: 7-way rotary connection
7.80: TC-valve
7.90: Throttle check valve for bucket cylinder
7.98: Brake valve for hydraulic travel gear motor
Group 8: Electrical System
8.55: Arrangement of Components
8.70: Excavator Control BST
8.72: Monitoring Display Upwards of V5.5
8.74: Control unit S2
8.80: Summary of error codes
8.81: Electrical system
Group 9: Swing Gear Transmission
9.10: Swing gear “SAT“
9.20: Swing gear brake
Group 10: Swing Ring
10.10: Ball swing ring
Group 11: Travel Gear
11.51: Travel gear transmission
11.71: Travel gear brake
11.75: Slide ring seal
Group 12: Track components
12.50: Travel gear
12.56: Wear of track components
12.60: Wear limits B60/B60L and D6C
12.61: Wear limits D7 & B6HD – B6
12.62: Dismantling and installing track components
12.76: Installing and dismantling idler «Berco»
12.81: Tensioning unit
12.91: Track roller
12.96: Carrier roller
Group 16: Options
16.02: Load holding valves for Hoist Cylinders
16.11: AHS 11 hydraulic installation kit
16.16: AHS 12 hydraulic installation kit
16.21: AHS 11 hydraulic installation kit with Tool Control
16.26: AHS 12 hydraulic installation kit with Tool Control
16.31: Schemas / Circuit Diagrams / Schémas
16.32: Schemas / Schemes / Schémas
16.51: Hydraulic schematics for options
16.52: Electric schematics for options
Group 17: Cab / Heater / Air-Conditioning System
17.30: Auxiliary heating
17.48: Heating and air-conditioning system
Group 18 : Centralized lubrication
18.50: Lube hoses repair instructions
18.51: Centralized lubrication system
18.56: Pump of the centralized lubrication system
18.58: Progressive distributor SX-E
18.59: Progressive distributor MX-F
Match the R900 C Litronic application and the individual document details before using this repair manual. Refer to Index within its stated document and equipment scope.






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